Dental appliance



' J JV. HANBERG DENTAL APPLIANCE 6 Sheets-Sheet 1 Filed July 16'. 1921 im d@ J .V. HANBERG DENTAL APPLIANCE July22,1924, 1,502,247

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.my 22 .1924n 1,502,247

.1 .v. HANBERG DENTAL APPLIANCE Filed July 16, 1921 6 Sk'leeizs-Slfxeefr.l 5

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5 .1 .v. HANBERG DENTAL APPLIANCE Filed July 16, 1921 6 sheet-s-sheet 4Al J .v HANBERG DENTAL APPLIANCE DENTAL APPLIANCE Filed July 16V. uml 6 Sheets-smeet G Patented July 22, 1924.

narran STATES PATENT OFFICE.

JOHN V. HANBERG, O'E CHICAGO, ILLINOIS, ASSIGNO'B TOV A. C. CLARK & COMANY;

OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS. n'

DENTAL` APPLIANCE.

Application lred July 16, 1921. Serial No. 485,350.

To all whom t may concern.' Y Y Be it known that I, JOHN V. HANERG, a citizen of the United States, and a resident of Chicago7 in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Dental Appliances, of which the following is ak full, clear, and exact specification.

My invention is `concerned with dental appliances, and more especially with certain appliances adapted to form a part of a complete dental unit, wherein all the `appliances needed by a dentist in working directly on a patient are brought togetherA upon a common pedestal whence they can be moved to whatever position may be necessary for use.

One feature of my invention resides in a novel means whereby I am enabled to keep f the contents of a hot water spray bottle or glass warmed to any desired temperature.

Another feature resides in the novel combination of certain translucent canopies in the pedestal with means in the pedestal back of them to produce an artistic effect and appearance.

Another feature of my invention resides in a movable panel for the pedestal carrying an incandescent lamp movable into a plurality of positions and provided with a locking mechanism therefor so arranged that the light has to be moved to a certain position before the panel can be unlocked to open it.

Another feature of my invention resides in a novel bracket arm having a Bunsen burner at its outer end, and also provided with an extension arm pivoted thereto carrying a work table.

Another feature of my invention resides in the novel gas pipe connections associated with said bracket arm whereby the latter can be swung horizontally to any desired position without affecting the flow of the gas to the burner.

i Another feature of my invention resides in the employment of novel sockets for appliances connected by tubes or cables with the interior of the pedestal so set that they are withdrawn and replaced easily and effectively and without substantial wear on the connecting tubes or cables.

Another feature of my invention is a nova.L hinge Connection auf. antenatal@ panel.

To illustrate my invention, I annex here- Fig. 1 isa front elevation of acomplete unity embodying my inventions, part of thel work table and of the drill bracketbeing broken away;

Fig. 2 is a top plan view of thestructure shown in Fig. 1; i

Fig. 3 is a top plan view, but on a larger scale, as seen in section on the line 3f-'3 of Fig. `4L isa central vertical sectionv onthe line 4-4of Fig. 1; f A

Fig. 5 is an enlarged detail in section on the line 5yd-5 of Fig. 1; V

Figs. 6V and 7 are details in section .on the lines 6-61 and 7 7., respectively, of Fig. 5;

Fig. 8 is a vertical section as seen on Vthe line 8-8 of Fig. y9 of the gas arm bearing bracket;

Figs. 9, 10 and 11 are details insection on the lines 9-9,101Oy and 11-411, respectively, of Fig. 8; l

Fig. 12 is a. detail in section,y on an enlarged scale on theA line 1 2-12 of Fig. 2;

Figs. 13, 14, 15 and 16 are details in sec@ tion on the linesV13-13, lfl, 155-15 and 16-16, respectively, ofFig. 12;

Fig. 17 is an enlarged detail in section on the line 17-17 of Fig. 1;

Fig. 18, sheet 4, isa view of the lower portion of the removable door panel shown in Fig. 5, as seen from the interior, showing the hinge construction; and

Fig. 19 is a side elevation of the same.

In carrying out my invention in its pre1 ferred. form, I have employed a hollow sixsided tapering pedestal 20 having projecting from one side thereof the hollow arm 21 supporting the customary spittoon bowl supplied with water through the connection 23, with a water pipe in the pedestal controlled by the valve 24. y

Projecting from one side below the plane of the bowl 22 is an offset 25 supporting the socket 26 for the saliva ejector controlled by the valve 28. Adjacent this offset ,is the rheostat 29 for controlling the current 1to the hot air syringe 30 and .the mouth lamp f 31, these, together with the cold water syringe 32, being supported in the sockets 33, 34 andV 35set 'at an angle on the plate 36 securedronithe top of the otfset'37. Below and top of the pedestahwhile its braclnsides andltop are formed'by the'opalescent glass canopy 44.A X companion socket 45 may be used to support a second'hot water spray bottle or a slender, drinking glass for'warrn water may be seated in it, as preferred. j Belowfthe canopy 44 is a similar one 46, forinf ing the sides, back and top of a recess intended to receive a Lcold water drinking glass 47 seated on the horizontal bottom 48 1of the recess (see Fig. 4), said bottom being formedbyfthe raised rear portion of the finger bowl 49, having the overflow pipe 50 projecting upwardfrom the center thereof land connected by anelbow 51V with a pipe 52 opening into the waste pipe adjacent the device '53' controlling the operation of the saliva ejector. Thewater for the glass 47 is furnished bythe nipple 54 connected to a cold water supply pipe\ and is controlled "by the valve 55.

At theitop of the pedestal 2() may be mounted the rotatable forked bracket 56 in which'is rotatably' mounted the dental engine' 57 which carries'a well known bracket 58 for the drill or burrs operated by the engine 57. Back of the offset 37 is pivoted, as hereinafter described, the arm 59 having pivoted at its outer end the arm 60, snpporting'at itsOuter end the table 61. At the ljoint of the 'arms 59 and 60 isloeated the Bunsen burner 62.

Having now described the general layout of'the unit, l may describe the features with which my invention is more particularly concerned, as, follows:

ln the top of the Vrear panel 63 is a door 64 provided on all four sides with the flange 6.5"a'dapted to tit over the edge of the correspondingly shaped apertures 66v in which the door or panel 64 is seated. As an ordiwith the pair of ears 67 on each ofV which is secured by the screws 68 the curved metal sheet or boss' 69 having the vertical slot 7 0 therein'. The Vdoor or panel 64 has the pair of vhinge 'pieces 71 projecting inwardly and downwardly from the bottom thereof, said piecesbein'g shaped to form the hooks 72 on their inner sides, which hooks hold the panel when it is opened and hanging down, as shown in dotted lines in Fig. 19. The pieces 71 have the meniscusshaped extensions 73 which are just thick enough to tit in the recesses and prevent sidewise movement ofthe door or panel.

Secured to one side of the back of the panel '64 a little above the center is the angular -bracket 74, which has secured thereon on the upper side of its inner end the socket 75 for a small incandescent lamp 76, which l employ to furnish illumination back of the opalessent glass canopy 45, and thus produce a beantifying etfectthereby. Centrally located below the center of the panel 64 is a'larger angular bracket 77, which has secured on the under side of its horizontal portion at the inner end thereof the socket 78 for the incandescent lamp 79, whose function is to illuminate the back of the opalescent glass canopy 46.A Mounted to slide through a circular aperture in the panel 64 above the bracket 77 is a rod 8O having the external handle 81 and carrying at its inner end the socket 82 for the prefl erably elongated incandescent lamp which has the function of heating the water in the spray bottle or bottles 4l, it being capable of being moved, as seen in Figs.

3, 4 and 5, between'a pair of such'bottles or glasses heldin the sockets 42 and 45,

and when in this position, it will heatrthe contents of the bottles. Y

If they are to be heated to a lesser degree, the rodV is drawn ont, as seen in dotted lines in Fig. 5, to a point where less of the radiated heat from the lamp will strike the bottles. To maintain the rod horizontal, and prevent' its cramping in its aperture in the panel, l secure to it adjacent 'the socket 82 the bracket 84 having the horizontal pon tion 85 with its downwardly and inwardly turned edges 86 embracing the horizontal portion of the bracket 77 so as to guide the lamp and rod in their movement. The lamp socket 83 is provided with a customary switch opened and closed in a well known manner by successive pulls on the chain 87 lUO connected thereto and extending through the Y 5 aperture 88 in the panel 64, so that the lamp 83 may be turned on or off in either adjustment. y

When the lamp 83 is in its innnermost position, as seen in Fig. 3, it extends through the inverted U-shaped opening `89 formed in the back` of the flange 90, semi-circular in horizontal cross-section, which is formed integral with and extends downward from the under side'of the plate 43, previously mentioned as forming the bottom of the recess for the hot water spray bottle 41. If the door or panel 64 were swung r open with the lamp 83 in lits innermost position seen in' Figs.'3` vand 5, the lamp would strike ,Y of the Pedestal 20 and screwed into the hinge I Locas@ the top ofthe opening789 andpossibly bevv fractured, so that it becomes necessary to lock the door against being opened when the lainp 83 is in said innermost position. To this end then, l employ the interlocking mechanism shown in Figs. 3, 5 and 6, where it will be seen that the locking button 91 is securedpn the short shaft 92 kjournaled in a bearing aperture in the boss formed near the to'p of the door 64, which shaft 92 has secured on its inner end Vthe nut 93, or otherwise, a'fshoit bell crank lever, the upper `arm 94 ot which, when the button 91 is turned to locking position, is vertical and engages the casing, as seen in Fig. 5, to lock the vdoor closed. Y The other arm I95, at

right angles thereto, has pivotefl to itsouter end lthe. upper end of the link 96, the lower end of which is pivoted to the locking 'bar 97 guided in its vertical movement bythe screws 98 andy 99, passed respectively 'through the elongated slots y100 land -101in the bar 97 and screwed l'into the back of the door 64. The lower e-nd'of the bar 97 terminates in a fork 102, too narrow toernbrace the body of the rod 8O and et wide enough to embrace it in theann'ular groove 103 formed therein', which'groove is in the verticalplane of the fork 102when the lamp 83 is drawn out, out 'of danger, so that the door 64 can only'be unlocked in that safe position of the lamp.

lThe current for illuminating the lamps 76,

79 and 83, is brought into the pedestal from" thevbottom and passes through thefuse box 104, the Wires (not shown)y extending from there up through the conduit 105 to the juno# tion 106, whence they pass up throughthe conduit `107 to the bus bar 108, whence they pass through the snap switch 109, with its button 110`on the outside of the panel, andA thence they passto a distributing bus bar (not shown) the casing 111, whence the` wires 112 (some of which are 'shown in Fig.

5) pass to the sockets ofthe lamps carried by the panel. e Y n The gas pipe 113 (a small portion of which is seen in Fig. 3) enters the bottom of the pedestal and is carried up close to its inner wall to the top of thev valve casing 114, to which it is connected by the connecting nut 115 and the customary nipple.y The valve (notshown) in the casing 114 may be of any desired construction to regulate the How of the ygas vto the Bunsen burner 62, and is controlled by the valvefhandle 116 whose stem extends through the wall of the pedestal into the casing 114.A A pipe 117, the lower end only of which, is seen in Figs. 8 to 10, is connected at its upper end to the valve casing 114, Yand said lower end is connected by the union 118 to the short pipe 119 passed through the aperture 120 in the `wall block 121 secured to the vertical face'122 of uit 'peaeaai'by the atpV here 12e aaa' 122i andby 'the machine 'screw 125, as clearly shownl in Fig.y 8. Theblock 121 has the hinge ear126fat its upper endy andthe com`lv short horizontal passage 132 leads from the y inner end ofthe pipe119to the largejvertli-f cal passage 133, inwhichis seated the rta;

`pe're'd enc`l134of the Llshap'ed connection 135 whichpswings with the arm 59 andis pressed down to' keep a gas-tight connection by the helically .coiled expanding spring 136 seated in an annular groove 13.7 in the connection and held in place by its other end fitting intheuannular groove 138 formed'vin the botftom o fk the ,cap bolt 128, and` preferably en closed Ibythe sleeve A139 secured-to or ex,-

tending (io-axially with the tapered endy 13.4. Thehorizontal arm ,of the.y connection 4has the rectangular ,enlargement V140 fitting in-the rectangularaperture y141 formed ina trans- Y verseweb ofthe arm 59, while the enlarged end 142, circular in cross-section has its in-` ternal diameter greater than theiyrestfof the passage` through the connection 135 yto recei've theY end of the slightly flexible metal tube 143 wrapped in the helically coiled. spring 144, which ,end makes a gas-tight joint with the passagethrough'the connecytioy1'i135.;y lugy 145 formed lin the end of lthe arm 59 is shaped to engage the hinge block` 121'and prevent it from swinging too far to the rear.` Thevangle at 146'in the arm t 59 yis to conform tothe offset V37 and to permit it to swingefarther to the 4frontv than would be y,possible without the angle. The tube 143 extends along in ,the hollow ot' thearrn. 59 Atothe vertical cylindrical portion 147m Whchthe Outer @ed `et the arm terminates, wherethe tube.`143 is connected tok the interior ot the vertical tube` 148 having a closed bottom IHeld `iittiyng in the portion ,147, it beingheld ,from rising therein by l loo thejsemi-spherical cap"149 screwed on the j threaded extension 150 of said tube V148:.v The ,portion 147 has thev annular seat 151 therein for the vertical fla-nge of the nut 152 screwed on tol thethreaded portion 153 of,

ythe tube 148. Journaled on the reduced upper portion 154 of the Ltube 148.i sthe substantiallyccylindr-ical vertical end 155 of the table 4arm 60, which is held from rising by the enlarged base 156, of the Bunsen burner tub.e'`157,thelower .end v158 of which tube (is lthreaded yinto vthe top of the tube 148,'k `and the base 156 ris preferably formedfseparately from theebody of thetube 157 and screwed therecn. 'c A gas nipple 159 is screwedwinfthe l toprof the ,reduced portion ofL the ,passage through the tube `157, yand the air supplyfor thefburner is controlled by thesplit ring 160 -provided with the apertures 161,v (see Fig. 16) co-operatingwith the apertures k162 in the adjacentv portion of the tube 157; The upper end ofthe tube 157, is reduced, as

shown, forming. an annular offset 163V 4onk which is seated the lower end of a sleeve 164,

which has the double Jfunct-ionof supporting at its lower'end the catch pan 165 and at its upper endthewind shield plate-166, the pan,

sleeve and plate being preferably formed inf7 tegrally from a piece kof sheet metal properly blanked and ldrawn to the desired shape by dies. l Areplaceable tip`167 may kbe screwed Y into. the top of `the burner tube 157. ,e Projecting fromthe sidesof the cylindriof'theuarm' 59 sol that thetable 61 'could not,

strike ,thepedestal or any part of it. The

@outer vendof the arm is preferablylprovided with a socketg171 (see F ig. 1)4 in which is journaledya spindle 172extending downward from the center of the table 61 so thatv theflatter vcan be. turned to bring any side f? of it adjacent the operator.

VAn. limportant Vfeature of.` invention thatY is appliedy lto the hot water spray bottle,

the saliva ejector, thehot air-syringe, and.

thecold water syringe. is illustrated more the .socket 34 are seen incross-section so thatthe inclination of the socket ,34C away lfrom the perpendicularnand away from'the pedestal is. clearly shown.. The mouth lamp has its two wires in thecable 173 extending downward from -the end. of the socketV piecetothe sheave174: around which it runs, then. extendingupward to its- `connections (not shown) to the` low voltage fuses 175 connected to the lrheostat 2,9.iA A -very light helically coiled: contractile spring 176 is connected at its top to the bottomof the case ingv in whichthe sheave 174 is journaled, while its lower endis connected to. theeye 177 secured to the cross piece 17 8 .secured to the base 17 9 of the pedestal 20, so thatv when the cord 17 3 ispulled'out through thesocket V34@ -in'usingthe mouth lamp 31, it Visnautomatically returned by the spring 176 when it is released, andy it will be obvious'k that this inclination. ofthe socket 34 Vmakes/the mouth lamp 31 slant so 4that it can .be easily graspedfandholds it so it is notlikely to strike .the pedestal when it is drawn in and thus break it.

While I have -shown and described my invention asembodiedin theform which I at vpresent consderfbest adaptedfto carry out its purposes, it will be understood that it is capable of modifications and that I do Vnot desire to be limited in the interpretation of the following claims, except as may be necessitated by the state of the prior art.

1. In a dentalV unit, the combination with a hollow pedestal, of a socket extending through a VVwall thereof and adapted to receive a holder for liquids, an incandescenty lamp `within the pedestal adjacent the fsocket, and ymeans extending through the pedestal .or controlling the lamp.

2. In a dental unit, the combination with hollow pedestal, of a socket vextending througha-wallthereof and adapted to re-v ceive a holder `for liquids, an incandescent lamp withinv the pedestal adjacent the socket, a support for the lamp extending through the` pedestal movable to vary the Y position of the lamp relative to the socket, Y

and means extending through the 'pedestal' for` controlling the lamp operable in any yposition of the support.

Y3. In a dental unit, :thecombination with ahollow pedestal, of a socket extending through the wall thereof and adapted to receive a holder for liquids, a door in the pedestal, an incandescent lamp within the pedestal adjacent the socket,`a :support for kthe lamp extending through the door movable to vary the positiontof the lamp relative to the socket, a lock for the door, and

nconnectionsjbetween thelock and the supportto prevent ,the .unlocking of the door; except in one-certain position of thefsupable to'vary ythe position orthe lamp relative to the socket, a lock for the door,.and

connections between thelock andthe supa dental unit, the combinationrwitha hollow pedestal, yor" a socket extending throughV the wallthereof and adaptedto report toprevent moving the latter -whenthe .doors is unlocked.

-5. In ajdental unit, the combination withv a hollow, pedestal, :of a socket extending through thewall rthereof and `adapted to receive a holder for liquids, a door in the pedestal, an `incandescent. lamp within the pedestal adjacent the socket,'a support for the lamp extending through the door movlable to vary the position of the` lamp relative to the socket, a lockI for `the door, and. connectionsbetween Vthelock and the support to prevent the unlocking, of the door except in one certain position of the support and to prevent movement of the supportwhen the door is unlocked.` ,A v Y 6. In a dentalunit, the combinationV with a hollow pedestal,y of a socket ,extendingw139`- through the wal-l thereof and adapted to receive a holder for liquids, a door. in the pedestal, an incandescent lamp within the pedestal adjacent the socket, a support for the lamp extending through the door movable to vary the position of the lampv relative to the socket, a lock for the door, and connections between the lock and the support to prevent the unlocking of the door except in one certain position of the support and to prevent movement of thel support when the door is unlocked, said connections consisting of 'a pivoted latch on theyxdoor having a tongue adapted to engagethe casi'ng in one position, an .arm on the latch, a

slide connected toy said arm and having'a fork, and a groove'in said support to be entered by the fork when in register therewith.

7 In a dental unit, the combination with -a hollow pedestal, of a recess therein having a bottom piece adapted to support a liquid holder, a translucent canopy over the bottom piece in the recess, and an incandescent light in the pedestal back of the canopy.

8. In a dental unit, the combination with a. hollow pedestal, of a recess therein having a bottom piece adapted to support a liquid holder, a translucent canopy over the bottom piece in the recess, an incandescent light in the pedestal back of the canopy, a nozzle in the top of the canopy, a water supply for the nozzle, and a. valve stem on the routside of the pedestal controllingl the water supply to the nozzle. y .e

9. In a dental unit, the combination with a hollow pedestal, of a plate in a wall thereof, a socket set in said plate at an angle diverging away from the adjacent wall of the pedestal, an implement seated in the socket, a flexible element attached to the implement, and means for retracting the element when it is withdrawn and released.

10. In a dental unit, the combination with a pedestal, of an arm pivoted thereto, an arm pivoted to the outer end of the first mentioned arm, a table on the outer end of the second arm, and stops associated withy said arms limiting the movement thereof so that the table cannot be swung into engagement with the pedestal.

11. In a dental unit, the combination with a pedestal, of an arm pivoted thereto, an arm pivoted to the outer end of the first mentioned arm, a table on the outer end of the second arm, a pair of abutments carried by the inner end of the second arm, and an in termediate abutment carried bythe outer end of the first arm in the horizontal plane through which the pair of abutments swing.

12. In a dental unit, the combination with a pedestal having an angle separating two faces thereof, of an arm pivoted to one of said faces, a second arm pivoted to the outer end of the first-mentioned arm, and a table on the outer end of the second arm, the

sul*

'end ofthe ,Second arm Whose radius ,iS lSS kthan the lengt-hc ofsaidsecondarmand a Bumsen" 101111161.Hiringv` itsibnr tube ,C911- centric with the axis of the joint lbetween the! arms and. `,Silppl'iefll with ses fhrillgh said joint.

a pedestal, y of l an arm pivoted thereto, 4a

second arm .pivoted to the outer end of.

the first-"mentioned arm, a table on 'the outer `end of the second arm whose radius ijs less than the length of ls a'id second harm, andk a i' Bunse'nr burner having 'its bfurn'ertube cio/ncentric with the axis ofthe Joint between the arms, vthe inner Journal of said'joint being hollow and connected with gas supply Y,

pipe and with said burner tube.

15. In a dentalunit, the combination with a hollow pedestal, A.o f ya gas supply ypipe ex.- tending therein,` ar bracket vmember on the face ofthe pedestal in which said gas supply pipe terminates, a pair of horizontal hinge ears extending outward from the bracket memberone of saidears having a valve seat therein connected with the pipe, an arm pivoted on said ears, and a valve member carried by the arm engaging the valve seat.

16. f In a dental unit, the combination with a pedestal, of a pair of hinge ears projecting therefrom, one of said ears having al coaxial valve seat therein, an arm pivoted on said ears, and a valve member carried by the arm and cooperating with the valve seat.

17. In ardental unit, the combination with al pedestal, of a pair of hinge ears projecting therefrom, one of said ears having a coaxial valve seat therein, an arm pivoted Von said ears, a 'valve member carried by the arm and cooperating with the valvev seat, and means for pressing the valve member into' its seat. Y

18. In a dental unit, the combination with a pedestal, of a pair of hinge ears projecting therefrom, one of said ears having a coaxial valve seat therein, an arm pivoted on said ears, pivot pins extending through the end of the arm into the ears, a valve member carried by the arm and cooperating with the valve seat, and a helically coiled expanding spring interposed between one of said pins and the valve member for pressing the latter against its seat.

19. In a dental unit, the combination with a pedestal, of a pair of hinge ears'projecting therefrom, one of said ears having a coaxial valve seat therein, an arm pivoted rvon said ears,.pivot pins extending through the end of the arm into the ears, a valve member carried by the arm and cooperating with the valve seat, and a helically :coiled expandingspring interposed between one: of said pins yand thervalve member for pressing the latter against its seat, said last mentioned pivot pin and the valve member having opposed .annular grooves in which thefends ofy the spring are. held. 20. In a dental, unit, the Vcombination with apedestal, of a pair of hinge ears projecting therefrom, one of said earshaving a coaxial valvevseat therein, an arm pivoted in said ears,vafvalve member carried by the `arm andc'ooperating with the valve seat, :a seat for the end of a tube in said valve member,. and a `tube therein having its end in the seatiiexible for the( purpose described. f

2l. In a dental unit, the combination with .a hollow pedestal, of a socket member eX- tending through a side wall thereof diverging from; the pedestal, lan implement adapted to be seated in the socket, a cable inly the pedestal attached to the implement which can be withdrawn through the socket, and automatic means for returning the cable when it is released.

Q3. In a dental unit, the combinationwith a hollowpedestal, of a panel closingan aperture therein, hinge lugs on the inner p.

surface and Vone edge of thepanel having Vhooked recesses therein cooperating with the4 adjacent edge of the aperture, and means for preventingvthe lateral displacement of the panel, said means cons istingy of spring plates carried by the pedestal and having slots therein cooperating with projections on the hinge lugs.

In witness whereof, I have hereunto set my hand and affixed my se'al,.thisV 12th day A. D. 1921. JOI-IN V. HANBERG. Vitness: f v Y JOHNI'IOWARD MoELnoY. I

ofJuly, L. s. 

